期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2018
卷号：199
期号：3
页码：032020
DOI：10.1088/1755-1315/199/3/032020
语种：English
出版社：IOP Publishing
摘要：n experimental work was investigated to study combined effect of nanofluid concentration and liquid filling ratio on heat transfer performance of pulsating heat pipe (PHP).The PHP was made of copper tube with external diameter of 4mm and inner diameter of 2mm and bended into a closed loop serpentine made of 6 U-turns. In the experiment, Al2O3/water nanofluid concentration changed from 0wt% to 0.7wt%, Al2O3/water nanofluid filling ratio ranged from 30% to 70%, and Al2O3 / water nanofluid or de-ionized water was the working fluid. Experimental results showed that there was a 0.3wt% optimum nanofluid concentration and a 50% optimum filling ratio, besides, the heat transfer efficiency of PHP with Al2O3/water could reach its maximum value (about 10.28%) only under the combined action of two parts when compared with the de-ionized water.
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